Hoisting apparatus



UNITED STATES PATENT OFFICE.

JAMES M. FRENCH, `OF BOWLING GREEN, KENTUCKY.

HOISTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 242,124, dated May 31, 1881. Application filed March 19, 1881. (No model.)

To all whom it may concern:

Be it known that I, JAMEs M. FRENCH, a citizen ofthe United States, resident at Bowling Green, in the county of Warren and State ot' Kentucky, have invented certain new and useful Improvements in Hoisting-Apparatus; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure l is a side view ofthe device. Fig. 2 is a horizontal section looking down on the windlas's.

This invention relates to improvements in hoisting apparatus. 4 Its object. is the production of a device which may be portable yet readily set for use.

The invention consists in a crane hinged and braced and carrying a hoisting device, the whole adapted for use with clamps, as hereinafter described.

In the annexed drawings, A is the upright, and B the arm, of a crane, held by a hinge, O. The top of upright A has a tenon, c, and inner end of arm B a mortise, b, by which these two are locked together, a pin, a', passing through them.

D is a brace hinged to the inside of upright A, and having tenons d d adapted to mortises c2 and b in the upright and arm.

For further holding the arm and upright together a catch, E, may be placed where they Join.

At the top of upright A and the outer end of arm B, upon the same side, are. the sheaves F F', held in brackets f f.

Located at the back of upright A, about the brace I), is hinged the bracket G, carrying the windlass H, held by a spring-pawl, I, and operated by the handle L. There may be an i11- termediate train-gear, if desired.

M is a cord passing from the windlass over sheaves F F through a running block, N, and a fixed block, P, (attached to the end of arm 13,) and fastened to this latter block.

It R are two clamps havin g arms r i", at the ends of which are the transverse grooves s s and clamping-screws S S. One of these clamps, R, has a hole, r', through it, the other, It', a seat, r2, in its top.

The lower portion of upright A is rounded and slipped through the hole r of clamp B, with the notches s downward, and' then in seat r2 of clamp R', with the notches s of the latter upward. These clamps are caught upon one of the wheels of a wagon, above and below, the rim resting in the notches, and are held tight by the screws SS.

The article to be lifted in or out is attached to the runningblock N and the Windlass turned. When lifted high enough the spring-pawl holds the cord, and the crane can be swung around in the seat r2 and the article lowered to its position.

After use the apparatus can be released, folded up, and deposited in the wa gon for use elsewhere.

This forms a very handy and useful device, especially about a farm and in moving heavy packages, &c.

In lifting, the wheel should be braced to prevent turning 5 and for great heights eXtra sections may be secured to the upright.

1. The combination of a crane, clamps for holding it in position, and a hoisting apparatus, as described.

2. The hoisting apparatus and crane, in combination with the clamps R and R', one having a hole, r', the other a seat, r2, and both the notches and screws, substantially as described.

In testimony whereof I ax my signature in presence of two witnesses.

J. M. FRENCH.

Witnesses:

R. G. POTTER, J. M. ADAMS. 

